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by greg_lemen

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we have an existing dns server (primary & secondary). we will be changing our isp next week. my question is how do i go about reconfiguring my dns? considering that we will be using the new leased ip addresses that our new isp provided. also the microsoft exchange 5.5 is installed on the primary dns server. and the microsoft proxy 2.0 server is installed on the secondary server. we have a firewall (checkpoint software). the primary/secondary is resides on the DMZ zone. thanks.

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by curious_george

Pretty simple, but can be a lengthy process, so get started immediately.

Contact www.netsol.com to have the DNS records updated for the appropriate DNS name(s). They will need to know the new IPs and name server names (probably the NS names willnot change). Start working on this right away because it can be a long process!!! Especially if you need to get signatures from a corporate officer because you don't have access to change the records yourself.

If you have internet IP addresses onyour intranet, then I'd create a duplicate host file and begin updating all the pertinent records and their cporresponding IP addresses in the duplicate file. At the time of cut-over stop the DNS service on the servers then you can rename the current DNS host file to another name and copy your revised version to the location and name of the old one. then restart the DNS service.

If you only have a couple for Internet facing servers and the Intranet is on a private IP system then you probably can just update the records at the time of cut-over, because you'll only have a few to do.

That's an overview of the steps, if you do not know how to perform any of these tasks you should reseach them in the Windows resource kits or in any good MS reference material.

by curious_george

Oh, yeah one more thing, don't forget to change the IP addresses on your servers and/or network equipment.

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